Pith Number

pith:LPDPZO5U

pith:2021:LPDPZO5U5B5OZIDC2F73OVMFC4

not attested not anchored not stored refs pending

Quantitative polarimetry of the disk around HD 169142

C. Tschudi, H.M. Schmid

arxiv:2108.03102 v1 · 2021-08-06 · astro-ph.EP · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LPDPZO5U5B5OZIDC2F73OVMFC4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T03:30:33.615124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bc6fcbbb4e87aeca062d17fb75585173998337a51091e21b1493c5dfe92759a

Aliases

arxiv: 2108.03102 · arxiv_version: 2108.03102v1 · doi: 10.48550/arxiv.2108.03102 · pith_short_12: LPDPZO5U5B5O · pith_short_16: LPDPZO5U5B5OZIDC · pith_short_8: LPDPZO5U

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/LPDPZO5U5B5OZIDC2F73OVMFC4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5bc6fcbbb4e87aeca062d17fb75585173998337a51091e21b1493c5dfe92759a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "222a26e791c568ddaf310cac5ccc4385aa3f5bc5cb679c8c0137501e4cb7de45",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-08-06T13:07:44Z",
    "title_canon_sha256": "b96f162fe2e7d27bd484af7e6ddcf58c43c05c6c34315c86728a1695abe9c327"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.03102",
    "kind": "arxiv",
    "version": 1
  }
}